https://bugs.kde.org/show_bug.cgi?id=341256
Yuri Chornoivan <yurc...@ukr.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Latest Commit| |https://commits.kde.org/kmp
| |lot/2b63a01634fc1653ead0ec9
| |caeae4ed89fc95165
Status|REPORTED |RESOLVED
--- Comment #3 from Yuri Chornoivan <yurc...@ukr.net> ---
Git commit 2b63a01634fc1653ead0ec9caeae4ed89fc95165 by Yuri Chornoivan.
Committed on 15/01/2020 at 18:59.
Pushed by yurchor into branch 'master'.
Keep cumulated error negligible for rapidly increasing functions
Summary:
The current scheme violates Runge-Kutta condition on error O(h^4) when dy is
too high. This leads to visible shifting and discontinuities on the plots of
integrals for e^x^2, e^abs(x), etc.
Test Plan:
1. Compile and install KmPlot.
2. Create the Cartesian plot "f(x) = e^x^2".
3. Switch to the "Integral" tab and tick the "Show integral" item.
4. Try to change the scale (Ctrl+mouse wheel). The integral curve should be
plotted as expected (no discontinuities, no extra lines on Ox).
f(x)=e^x^2 and its integral
Before the patch:
{F7764991}
After the patch:
{F7764992}
Reviewers: #kde_edu
Subscribers: aacid, cfeck, kde-edu
Tags: #kde_edu
Differential Revision: https://phabricator.kde.org/D24972
M +3 -2 kmplot/xparser.cpp
https://commits.kde.org/kmplot/2b63a01634fc1653ead0ec9caeae4ed89fc95165
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